ZOOLOGY AND BOTANY, MICROSCOPY, ETC. 185 



duct ou the left to the last leg was like a normal oviduct ; the duct to 

 the penultimate leg could not be traced in its entirety (as the liver had 

 exerted a digestive action on the internal portion). The author gives 

 an account of somewhat similar abnormalities in other Crustaceans. 



New Crab from Telegraph Cable in Indian Ocean.* — W. T. Caiman 

 describes Calocarcinus africanus g. et sp. n. found on the telegraph- 

 cable between Aden and Zanzibar, depth about 600 fathoms. It belongs 

 to the family Xanthidge, and approaches closely to Sphenomerides 

 Rathbun (Sphenomerus Wood-Mason), though differing from it in 

 several important characters. 



Body Spaces and so-called Excretory Organs of Ibla quadrivalvis.f 

 Freda Bage distinguishes the more or less irregular spaces of the 

 haemoccele, and a glandular organ, opening into a large saccular 

 bladder, which communicates with the exterior by a duct opening at the 

 base of the second maxilla, The glandular organ is probably excretory, 

 and the equivalent of a maxillary gland or of the coxal glands of 

 Limulus. 



Mutation in Atyidae.J — Edmond Bordage has inquired, at Bouvier's 

 suggestion, into the relation of Atya serrata and Ortmannia alluaudi, 

 which occur together in mountain streams in Bourbon. The genera 

 differ in several ways, e.g. in the form of the chelae on the two anterior 

 thoracic limbs. Bordage found that the females of Ortmannia alluaudi 

 may give rise to young of the Ortmannia type and to young of the 

 Atya type. Out of sixteen eggs, ten became the former and six the 

 latter ; the larval stages were externally the same, but the eggs were 

 different, and the post-larval forms were different. 



New and Rare Entomostraca from Scottish Seas.§ — Thomas Scott 

 reports some interesting forms collected by the ' Goldseeker ' in Scottish 

 Seas — Xanthocalanus tenairemis sp. n., Amallophora claviger sp. n., 

 Pseudotharybis zetlandicus g. et sp. n. (near Tharybis), and Euchoncluecia 

 d' arcy-thompsoni sp. n. 



Traces of Autotomy in a Fossil. |] — R. Legendre notes that all the 

 specimens of Oallianassa faujasi in the palgeontological collection in 

 the Museum of Natural History in Paris, are represented simply by the 

 claws, and he infers from this that autotomy was as common among 

 Crustaceans of the Secondary ages as it is now. 



Annulata. 

 Nephridia of Phascolion.lf— L. A. Moltchanoff gives an account of 

 the atrophied left nephridium and the developed right nephridium of 

 Phascolion spitzbergense. The latter consists of a tube bent on itself, 

 with the walls fused where they touch. The external orifice is just 

 opposite the internal opening ; the upper and the lower canal of the 



* Ann. Nat. Hist., iii. (1909) pp. 30-33 (1 fig.). 

 + Proc. R. Soc. Victoria, xxi. (1908) pp. 226-32 (1 pi.). 

 % Comptes Rendus, cxlvii. (1908) pn. 1418-20 (2 figs.). 

 § Ann. Nat. Hist., iii. (1909) pp. 122-30 (3 pis.). 



C.R. Soc. Biol. Paris, lxv. (1908) pp. 662-3. 

 t Bull. Acad. Imp. Sci. St. PStersbourg, ser. 6, i. (1909) pp. 69-74 (5 figs.). 



•April 21st s 1909 u 



